Color fastness, also known as dye fastness and dye fastness, refers to the various effects of the color of Oxford fabric during processing and use. resistance. Generally, the fastness grade is evaluated based on the discoloration of the sample and the staining of the undyed backing fabric. Textile color fastness testing is a routine testing item in the intrinsic quality testing of textiles.
The color fastness of fabric is related to the type of fiber, yarn structure, fabric structure, printing and dyeing method, dye type and external force. Tests of color fastness generally include color fastness to light, color fastness to weathering, color fastness to washing, color fastness to rubbing, color fastness to perspiration, etc. Sometimes there are different tests based on different textiles or different usage environments. Some special color fastness requirements. The color fastness test usually conducted is the degree of discoloration of the dyed material and the degree of staining of the backing material. For the color fastness rating, except for the light fastness which is eight, the others are all five. The higher the grade, the better the color fastness.
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